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San Francisco Seattle

Cheap Flights from San Francisco to Seattle

San Francisco (SFO) → Seattle (SEA) · about 2 hours 15 minutes

The Oracle · quick answer

Flights from San Francisco (SFO) to Seattle (SEA) are operated by Alaska, Delta, United and Southwest among others, with nonstop, one of the busiest West Coast shuttles. Total journey time is typically about 2 hours 15 minutes. You depart from San Francisco International (SFO) and arrive at Seattle–Tacoma International (SEA).

San Francisco to Seattle at a glance
Departure airport San Francisco International (SFO)
Arrival airport Seattle–Tacoma International (SEA)
Main airlines Alaska, Delta, United and Southwest
Routing Nonstop, one of the busiest West Coast shuttles
Journey time about 2 hours 15 minutes
When to book Three to eight weeks ahead; domestic fares are usually at their worst inside the last fortnight and rarely improve by waiting

Flying out of San Francisco SFO

San Francisco is the most direct US gateway to South and East Asia, and the Bay Area's concentration of Indian technology professionals has made SFO–India one of the most heavily served long-haul corridors in the country. That density cuts both ways: there is real nonstop capacity, but demand around the winter holidays and the summer university calendar is severe enough that fares from Fremont, Sunnyvale and San Jose can double if you leave the booking to the last month. Early planning is worth more on this corridor than almost any other we handle.

Airlines from San Francisco to Seattle

Alaska Delta United Southwest

Itineraries offer nonstop, one of the busiest West Coast shuttles.

Getting the best price to Seattle

Book three to eight weeks ahead; domestic fares are usually at their worst inside the last fortnight and rarely improve by waiting.
This route has nonstops, but a one-stop itinerary on the same dates is often materially cheaper — worth pricing both before you assume.
Confirm the checked-bag allowance before comparing fares — the cheaper ticket often stops being cheaper once bags are added.

Want a San Francisco → Seattle quote?

Our agents price consolidator fares that Expedia, Kayak and Google Flights never show.

San Francisco to Seattle — frequently asked questions

Fares on the San Francisco–Seattle route vary widely by season and how far ahead you book. We do not publish an estimate we have not measured for this pair; call our agents and they will quote the live consolidator fare for your dates.

Carriers on this route include Alaska, Delta, United and Southwest. Others serve it on one-stop itineraries, and the cheapest is not always a name you would expect — the lowest fare we have tracked here was on a carrier outside that list more than once. Itineraries offer nonstop, one of the busiest West Coast shuttles, and total journey time runs about about 2 hours 15 minutes. Which carrier is cheapest changes with the season and the fare bucket rather than staying fixed, which is why we compare them all on every quote.

Plan on about 2 hours 15 minutes from San Francisco International (SFO) to Seattle–Tacoma International (SEA), including time on the ground if your itinerary connects.

Book three to eight weeks ahead; domestic fares are usually at their worst inside the last fortnight and rarely improve by waiting.

Yes — this route has nonstop service, with nonstop, one of the busiest West Coast shuttles. Nonstop is not always the cheapest option: a one-stop itinerary on the same dates is frequently a few hundred dollars less, and on a journey of about 2 hours 15 minutes that trade is worth pricing rather than assuming. Frequencies change by season, so call us for what is actually flying on your dates.

SFO handles the Bay Area's international departures, with Oakland (OAK) and San Jose (SJC) serving domestic and short-haul routes. From the South Bay, SJC is sometimes the better start to a connecting itinerary despite SFO's bigger schedule — the drive up the peninsula at the wrong hour can cost more time than the connection saves.

On a short domestic hop like this one, usually not by much — these fares are transparent and competitive, and we will tell you when a booking site has already found you the right price. Call us when the trip is more complicated than one flight each way, which is where we are actually worth the phone call. SkyKaro's agents are reachable 24/7, and nothing is charged until an agent has confirmed the itinerary and the price with you.